US3832298A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for producing a photoconductive element
Assignee: Eastman Kodak Co
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Filing: 1972-06-05
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Granted: 1974-08-27
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Expires: 1992-06-05
Abstract
Abstract A PHOTOCONDUCTIVE ELEMENT CAN BE FORMED BY SPUTTERING DOPED OR UNDOPED ORTHORHOMBIC AND TETRAGONAL LEAD MONOXIDE LAYERS ONTO A SUPPORT FORM A POWDERED TARGET WITHIN AN ATMOSPHERE OF REDUCED PRESSURE. THE PRODUCT PRODUCED HAS ESSENTIALLY NO FATIGUE, LOW DARK CONDUCTIVITY, HIGH SPATIAL FREQUENCY RESPONSE AND MICROSECOND RESPONSE WHEN EXPOSED TO ACTIVATING RADIATION.
Inventors
- 👤 A Weiss
- 👤 R Spahn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:35
CPC Classifications
C; C23; C23C; C23C14/00; C23C14/22; C23C14/34; C23C14/35; H; H10; H10F; H10F71/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-08-26 | 1978-02-25 | 1978-08-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-08-26 | 1982-02-25 | 1982-08-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-08-26 | 1986-02-25 | 1986-08-27 | $7700.00 | Window Closed / Lapsed |